{
    "tender_id": 3634553,
    "check": {
        "ok": true,
        "versions": 7,
        "broken_at": null
    },
    "formula": "content_hash = sha256(content); hash = sha256(prev_hash + \"\\n\" + tender_id + \"\\n\" + version + \"\\n\" + recorded_at + \"\\n\" + content_hash [+ \"\\n\" + actor, when the version has one])",
    "versions": [
        {
            "version": 1,
            "recorded_at": "2026-10-27T18:09:38Z",
            "content": "{\"cpv\": \"50511000\", \"url\": \"https://alchemia.logintrade.net/portal,szczegolyZapytaniaOfertowe,bdbe9ab82812db8831a8083a5eb44e8f.html\", \"buyer\": \"Alchemia S.A. Oddział Chorzów Batory\", \"title\": \"HBT / 48518/ 2026 Sprzęgło 004ASz 80/150-75/105\", \"region\": \"mazowieckie\", \"source\": \"logintrade_central\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"mazowieckie\", \"source_id\": \"alchemia-bdbe9ab82812db8831a8083a5eb44e8f\", \"deadline_at\": \"2026-10-30T08:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-27T08:01:00Z\"}",
            "content_hash": "4689f38b43b409ad9219bc1a6db6193dd1d6ebde1ddb1442ecdc916e6a8c6f8c",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "03f3f1e5b2488a827986255b8eba59da12df7d116ee73e3a4f73a6ba36f1efee",
            "actor": null,
            "seal": {
                "id": 4,
                "digest": "1a6d1144791ca08d9453bd1c8d38a6c251eb74cb6d377626fde25c11a52ccc7a",
                "file": "https://tenderiq.pl/rejestr/pieczec-4.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-4.txt.ots",
                "bitcoin_block": 973472
            }
        },
        {
            "version": 2,
            "recorded_at": "2026-10-28T00:59:19Z",
            "content": "{\"cpv\": \"50511000\", \"url\": \"https://alchemia.logintrade.net/portal,szczegolyZapytaniaOfertowe,bdbe9ab82812db8831a8083a5eb44e8f.html\", \"buyer\": \"Alchemia S.A. Oddział Chorzów Batory\", \"title\": \"HBT / 48518/ 2026 Sprzęgło 004ASz 80/150-75/105\", \"region\": \"slaskie\", \"source\": \"logintrade_central\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"alchemia-bdbe9ab82812db8831a8083a5eb44e8f\", \"deadline_at\": \"2026-10-30T08:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-27T11:25:00Z\"}",
            "content_hash": "ac649b981ab6fee2aa35524160c4f782a9965eb2edac5bdc58b94c6a652da8d5",
            "prev_hash": "03f3f1e5b2488a827986255b8eba59da12df7d116ee73e3a4f73a6ba36f1efee",
            "hash": "d28211ab24423fe238a2ac945d85359ee20b776b3aee31f5ae591cbb875d12ba",
            "actor": null,
            "seal": {
                "id": 5,
                "digest": "0659ce1e2aadd7f69ed1ff4603a4290c070eaa14bbeed28a3c9a7cc2127acae9",
                "file": "https://tenderiq.pl/rejestr/pieczec-5.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-5.txt.ots",
                "bitcoin_block": 973609
            }
        },
        {
            "version": 3,
            "recorded_at": "2026-10-28T05:45:47Z",
            "content": "{\"cpv\": \"50511000\", \"url\": \"https://alchemia.logintrade.net/portal,szczegolyZapytaniaOfertowe,bdbe9ab82812db8831a8083a5eb44e8f.html\", \"buyer\": \"Alchemia S.A. Oddział Chorzów Batory\", \"title\": \"HBT / 48518/ 2026 Sprzęgło 004ASz 80/150-75/105\", \"region\": \"slaskie\", \"source\": \"logintrade_central\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"alchemia-bdbe9ab82812db8831a8083a5eb44e8f\", \"deadline_at\": \"2026-10-30T08:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-27T11:25:00Z\", \"procedure_url\": \"https://alchemia.logintrade.net/portal,szczegolyZapytaniaOfertowe,bdbe9ab82812db8831a8083a5eb44e8f.html\"}",
            "content_hash": "2b11c3d3d1c36c299e51a7c87d389e0255e18cf35c03c01561e576ea4afca00c",
            "prev_hash": "d28211ab24423fe238a2ac945d85359ee20b776b3aee31f5ae591cbb875d12ba",
            "hash": "35c5168c644a8097035396ba2aa4b57a0d8de4256c4025c19d4d5dfca55af6ca",
            "actor": null,
            "seal": {
                "id": 5,
                "digest": "0659ce1e2aadd7f69ed1ff4603a4290c070eaa14bbeed28a3c9a7cc2127acae9",
                "file": "https://tenderiq.pl/rejestr/pieczec-5.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-5.txt.ots",
                "bitcoin_block": 973609
            }
        },
        {
            "version": 4,
            "recorded_at": "2026-10-29T08:55:53Z",
            "content": "{\"cpv\": \"50511000\", \"url\": \"https://alchemia.logintrade.net/portal,szczegolyZapytaniaOfertowe,bdbe9ab82812db8831a8083a5eb44e8f.html\", \"buyer\": \"Alchemia S.A. Oddział Chorzów Batory\", \"title\": \"HBT / 48518/ 2026 Sprzęgło 004ASz 80/150-75/105\", \"region\": \"mazowieckie\", \"source\": \"logintrade_central\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"mazowieckie\", \"source_id\": \"alchemia-bdbe9ab82812db8831a8083a5eb44e8f\", \"deadline_at\": \"2026-10-30T08:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-27T08:01:00Z\", \"procedure_url\": \"https://alchemia.logintrade.net/portal,szczegolyZapytaniaOfertowe,bdbe9ab82812db8831a8083a5eb44e8f.html\"}",
            "content_hash": "9771ee7a58a3b787f84888c7f81239c877d3ece1f8cb895e60f7325ae611e64d",
            "prev_hash": "35c5168c644a8097035396ba2aa4b57a0d8de4256c4025c19d4d5dfca55af6ca",
            "hash": "c4ec0c2e9d1c4d4487b57844665717583827a14bffe2c86210ccd0b08c7e5bf1",
            "actor": null,
            "seal": {
                "id": 6,
                "digest": "e733200881d78faed3c108fa90cea332062fa40f3af23fcfd3f901e311d96e33",
                "file": "https://tenderiq.pl/rejestr/pieczec-6.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-6.txt.ots",
                "bitcoin_block": 973754
            }
        },
        {
            "version": 5,
            "recorded_at": "2026-10-29T17:45:25Z",
            "content": "{\"cpv\": \"50511000\", \"url\": \"https://alchemia.logintrade.net/portal,szczegolyZapytaniaOfertowe,bdbe9ab82812db8831a8083a5eb44e8f.html\", \"buyer\": \"Alchemia S.A. Oddział Chorzów Batory\", \"title\": \"HBT / 48518/ 2026 Sprzęgło 004ASz 80/150-75/105\", \"region\": \"mazowieckie\", \"source\": \"logintrade_central\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"mazowieckie\", \"source_id\": \"alchemia-bdbe9ab82812db8831a8083a5eb44e8f\", \"deadline_at\": \"2026-10-30T08:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-27T08:01:00Z\", \"procedure_url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3856816/hbt-48518-2026-sprzeglo-004asz-80-150-75-105\"}",
            "content_hash": "9ceb8ff4a28e0d3dc39f247f3b5a34bf4107332f7a626f11c208bb3de1b351cb",
            "prev_hash": "c4ec0c2e9d1c4d4487b57844665717583827a14bffe2c86210ccd0b08c7e5bf1",
            "hash": "f9d3fcf1810708cbf84e61c09f19e92f618634a42037a034662a6c3918956c96",
            "actor": null,
            "seal": {
                "id": 6,
                "digest": "e733200881d78faed3c108fa90cea332062fa40f3af23fcfd3f901e311d96e33",
                "file": "https://tenderiq.pl/rejestr/pieczec-6.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-6.txt.ots",
                "bitcoin_block": 973754
            }
        },
        {
            "version": 6,
            "recorded_at": "2026-10-29T19:41:00Z",
            "content": "{\"cpv\": \"50511000\", \"url\": \"https://alchemia.logintrade.net/portal,szczegolyZapytaniaOfertowe,bdbe9ab82812db8831a8083a5eb44e8f.html\", \"buyer\": \"Alchemia S.A. Oddział Chorzów Batory\", \"title\": \"HBT / 48518/ 2026 Sprzęgło 004ASz 80/150-75/105\", \"region\": \"slaskie\", \"source\": \"logintrade_central\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"alchemia-bdbe9ab82812db8831a8083a5eb44e8f\", \"deadline_at\": \"2026-10-30T08:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-27T11:25:00Z\", \"procedure_url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3856816/hbt-48518-2026-sprzeglo-004asz-80-150-75-105\"}",
            "content_hash": "2bd8dae79a7015e6d37bd9dfa8986cb6df60dd93b970a4c65fde69d8b23fea75",
            "prev_hash": "f9d3fcf1810708cbf84e61c09f19e92f618634a42037a034662a6c3918956c96",
            "hash": "82e8ae124919c16a51cb708553cf4c989e18fc87e26694cc5fce18a2cf0cfd35",
            "actor": null,
            "seal": {
                "id": 6,
                "digest": "e733200881d78faed3c108fa90cea332062fa40f3af23fcfd3f901e311d96e33",
                "file": "https://tenderiq.pl/rejestr/pieczec-6.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-6.txt.ots",
                "bitcoin_block": 973754
            }
        },
        {
            "version": 7,
            "recorded_at": "2026-10-29T19:46:04Z",
            "content": "{\"cpv\": \"50511000\", \"url\": \"https://alchemia.logintrade.net/portal,szczegolyZapytaniaOfertowe,bdbe9ab82812db8831a8083a5eb44e8f.html\", \"buyer\": \"Alchemia S.A. Oddział Chorzów Batory\", \"title\": \"HBT / 48518/ 2026 Sprzęgło 004ASz 80/150-75/105\", \"region\": \"slaskie\", \"source\": \"logintrade_central\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"alchemia-bdbe9ab82812db8831a8083a5eb44e8f\", \"deadline_at\": \"2026-10-30T08:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-27T11:25:00Z\", \"procedure_url\": \"https://alchemia.logintrade.net/portal,szczegolyZapytaniaOfertowe,bdbe9ab82812db8831a8083a5eb44e8f.html\"}",
            "content_hash": "2b11c3d3d1c36c299e51a7c87d389e0255e18cf35c03c01561e576ea4afca00c",
            "prev_hash": "82e8ae124919c16a51cb708553cf4c989e18fc87e26694cc5fce18a2cf0cfd35",
            "hash": "67a4cc2107aea9235b048b90ebf8a4abf43e982c6440c7c9433c1e3f23723cf9",
            "actor": null,
            "seal": {
                "id": 6,
                "digest": "e733200881d78faed3c108fa90cea332062fa40f3af23fcfd3f901e311d96e33",
                "file": "https://tenderiq.pl/rejestr/pieczec-6.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-6.txt.ots",
                "bitcoin_block": 973754
            }
        }
    ]
}